JEE Main & Advanced Chemistry Surface & Nuclear Chemistry / भूतल और नाभिकीय रसायन Question Bank Causes of radioactivity and Group displacement law

  • question_answer
    If the quantity of a radioactive element is doubled, then its rate of disintegration  per unit time will be [NCERT 1972, 92; MP PET 1989]

    A)                 Unchanged

    B)                 Reduced to half

    C)                 Increased by \[\sqrt{2}\]times

    D)                 Doubled

    Correct Answer: D

    Solution :

              Rate =\[\lambda \] × number of atoms.


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